powerpc: linux header sync script includes epapr_hcalls.h
[qemu/ar7.git] / block / raw-aio.h
blobe77f3611482b63199a915591ace25b727c749e83
1 /*
2 * Declarations for AIO in the raw protocol
4 * Copyright IBM, Corp. 2008
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
9 * This work is licensed under the terms of the GNU GPL, version 2. See
10 * the COPYING file in the top-level directory.
12 * Contributions after 2012-01-13 are licensed under the terms of the
13 * GNU GPL, version 2 or (at your option) any later version.
15 #ifndef QEMU_RAW_AIO_H
16 #define QEMU_RAW_AIO_H
18 /* AIO request types */
19 #define QEMU_AIO_READ 0x0001
20 #define QEMU_AIO_WRITE 0x0002
21 #define QEMU_AIO_IOCTL 0x0004
22 #define QEMU_AIO_FLUSH 0x0008
23 #define QEMU_AIO_TYPE_MASK \
24 (QEMU_AIO_READ|QEMU_AIO_WRITE|QEMU_AIO_IOCTL|QEMU_AIO_FLUSH)
26 /* AIO flags */
27 #define QEMU_AIO_MISALIGNED 0x1000
30 /* linux-aio.c - Linux native implementation */
31 #ifdef CONFIG_LINUX_AIO
32 void *laio_init(void);
33 BlockDriverAIOCB *laio_submit(BlockDriverState *bs, void *aio_ctx, int fd,
34 int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
35 BlockDriverCompletionFunc *cb, void *opaque, int type);
36 #endif
38 #ifdef _WIN32
39 typedef struct QEMUWin32AIOState QEMUWin32AIOState;
40 QEMUWin32AIOState *win32_aio_init(void);
41 int win32_aio_attach(QEMUWin32AIOState *aio, HANDLE hfile);
42 BlockDriverAIOCB *win32_aio_submit(BlockDriverState *bs,
43 QEMUWin32AIOState *aio, HANDLE hfile,
44 int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
45 BlockDriverCompletionFunc *cb, void *opaque, int type);
46 #endif
48 #endif /* QEMU_RAW_AIO_H */